We will now offer support exclusively through the My Maps forum. We will automatically stop charging online subscription fees in December. That means that everyone can make even more amazing maps at no extra charge! The only change we're making is to the price: you no longer need to pay for any of the advanced functionality. Your existing data won't change, and you can still access all your maps at /mymaps. We’re pleased to announce that the mapping features of My Maps Pro will soon be available for free, and we’ll no longer offer a paid version of My Maps. I assume now all the differences will be migrated? (views of your embedded/published maps by others) Here are the differences between My Maps and My Maps Pro:

Google said 'My Maps Pro will soon be available for free.' They will stop charging these users, but support will go away and only be handled in the forums. Google sent emails to My Maps Pro users that it is now going free. That version gave you more features and access to make your own maps but cost $5 per month.

Google has a pro version of My Maps named My Maps Pro.

Mymaps